Hill returns to stage with festival slot

The Grammy-winner has spent much of the last decade out of the spotlight, only performing a handful of erratic and bizarre concerts in recent years.

In July 2007, Hill played a rare show in London, only to be booed off by fans after she turned up two hours late.

The strange performance led her former bandmate Wyclef Jean to say: "Lauryn Hill, Mrs Hill, the Hill should go see a psychiatrist - period - just seek help."

But the singer appears determined to return to the music scene and will perform at the festival in Switzerland, which is billed as a three-day tribute to Island Record founder Chris Blackwell who signed Bob Marley - Hill's late father-in-law - to the label in 1972.

Hill has only released two solo albums since 1998 - her first, The Miseducation of Lauryn Hill, was a worldwide smash that sold 18 million copies.